.daohang {
    width: 100%;
    height: 50px;
    background-color: #afa5a5;
}
.show {
    width: 100%;
    height: 200px;
    background-color: gray;
}
.fuwu {
    width: 100%;
    height: 150px;
}
.fuwu > div {
    float: left;
    width: 25%;
    height: 150px;
}
.fuwudiv1 {
    background-color: red;
}
.fuwudiv2 {
    background-color:green;
}
.fuwudiv3 {
    background-color: blue;
}
.fuwudiv4 {
    background-color: violet;
}
.anli {
    width: 100%;
    height: 220px;
}
.anlidiv1 {
    width: 100%;
    height: 70px;
    background-color: gray;
}
.anlidiv2 {
    float: left;
    width: 33.33%;
    height: 150px;
    background-color: green;
}
.anlidiv3 {
    float: left;
    width: 33.33%;
    height: 150px;
    background-color: blue;
}
.anlidiv4 {
    float: left;
    width: 33.33%;
    height: 150px;
    background-color: red;
}
.zixun {
    width: 100%;
    height: 220px;
}
.zixundiv1 {
    width: 100%;
    height: 70px;
    background-color: gray;
}
.zixundiv2 {
    float: left;
    width: 33.33%;
    height: 150px;
    background-color: blue;
}
.zixundiv3 {
    float: left;
    width: 33.33%;
    height: 150px;
    background-color: red;
}
.zixundiv4 {
    float: left;
    width: 33.33%;
    height: 150px;
    background-color: green;
}
.footor {
    width: 100%;
    height: 80px;
    background-color: skyblue;
}